This is stem class, Science, Technology, Engineering, Math ( My teacher only teach Science). Anyway, I learn a lot in is round, I have learn about Cell, Genetics, Evolution and etc. let talk about cell, The concept idea of cell is it build up you, in you there are million cell. The four main part of cell is Cell membrane, DNA, Cytoplasm, Ribosome. If you really want to know deeper about it I will show you Here, Cell structure, Cell function, Cell Division.
Ok let see what is Genetics, Genetics is a code who run inside you, also inside your cell. Genetics also can transfer, like GMO and etc. Link.
Now well come to Evolution, Evolution is when an organism change to a difference organism. How do we know Evolution, we learn evolution from fossil, fossil is what remain from an organism that live early before us.